Dental cuspidor.



PATENTED MAY 19,1903.

H. B. "WEBER. DENTAL GUSPIDOR.

APPLICATION PIL'ED SEPT. 13, 1902.

H0 MODEL.

INVENTOR SHIz/ryZ I Z6602;

WITNESSES: m n.- 5mm.

ATTORNEY Wilma/Mam,

m: Nonms PETERS co. PNOTOLITNOY. wasumumn, n. c,

, ranging the other connections.

UNITED STATES Patented May 19, 1903.

HENRY E. WEBER, OF CANTON, OHIO.

DENTAL CUSPIDOR.

SPECIFICATION fbrming part of Letters Patent No. 728,638, dated May 19, 1903.

Application filed September 13,1902. Serial No. 123,216. (No model.) I

readily removed and replaced if broken or for other purposes without disturbing or disar this object by the construction illustrated in the accompanying drawings, in which' Figure 1 is a vertical section of a cuspidor and its support and attachment; and Fig. 2,

a perspective view of the support and attachinent, showing parts broken away.

Similar numerals refer to similar parts throughout the drawings.

In the bracket 1, which is attached to achair or other object, (not shown,) is provided the supporting-collar 2, which may be formed integral with the bracket or connected with it, as illustrated. The upper part 8 of thesupporting-collaris contracted in diameter, forming the internal annular shoulder 3, and in the lower part is provided the internal screwthread 4.

In the supporting-collar, immediately below the shoulder 3, is provided the elastic ring 5, the normal internal diameter of which is as large as that of the contracted part of the supporting-collar above the shoulder, and the drain-pipe cup 6 is screwed into the lower part of the supporting-collar up against the elastic ring, preferably with the intervening washer 7. The internal diameter of the washer and that part of the cup within the collar is as large as that of the contracted part of the collar. 7

The depending neck 8 of the cuspidor 9 is formed with its external diameter to neatly fit in the contracted part of the supportingcollar and is preferably provided with the annular shoulder 10 for resting on the upper edge of the collar. The annular groove 11 is I accomplish.

provided in the cuspidor-neck,\vhich groove is arranged to register withthe elastic ring when the cuspidor is in place and is adapted to receive the expansion of the ring when the same is compressed by screwing the drain-pipe cup against it. This groove may be rounded, as illustrated, or shaped in any other suitable manner to accomplish the purpose described.

When the cuspidor is put in place and the drain-pipe cup screwed up to compress the elastic ring, the same is expanded inward to fill the annular groove on the neck of the cuspidor, and the cnspidoris thereby held firmly in place by an elastic connection which will not tend to crack or break it, and if it is desired to remove the cuspidor by reason of breakage or otherwise the drain-pipe cup is turned out far enough to permit the elastic ring to resume its normal shape, when the cuspidor-neck can be lifted out of the supporting-collar without disturbing or disarranging any other parts of the support.

What I claim as my invention, and desire to secure by Letters Patent, is-

i 1. The combination of a cuspidor, a neck on said cuspidor, there being an external annular groove on said neck, a supporting-collar around said neck contracted to neatly fit the same above said groove thereby forming an annular shoulder, an elastic ring below said shoulder normally passing said neck, and a drain-pipe cup screwed in said collar against said-ring and adapted to compress the ring into said groove.

2. The combination of a cuspidor, a neck on said cuspidor, there being an external annular groove on said neck and an external annular shoulder above said neck, a collar supporting said cuspidor-shoulderaround said neck and contracted to neatly "fit the neck above said groove thereby'formingan internal annular shoulder, an elastic ring below said collar-shoulder normally passing said neck, and a drain-pipe cup screwed in said collar against said ring and adapted to compress the ring into said groove.

3. The combination of a cuspidor, a neck on said cuspidor, there being an external annular groove on said neck, a supporting-collar around said neck contracted to neatly fit the same above said groove thereby forming name to this specification in the presence of an annular shoulder, an elastic ring below two subscriblng witnesses.

said shoulder normally passin" said neck, a

washer below said ring, and a drain-pipe cup HENRY WEBER 5 screwed in said collar against said washer and W itnesses:

adapted to compress the ring into said groove. ELSIE F. MALLORY,

In testimony whereof I have signed my HARRY FREASE. 

